CEXTVNCULUS. LXXXII. PRIMULACE^E. 387 



3. L. HYBRIDA. Michx. Hybrid Loosestrife. 



Smooth, erect, branched above ; Ivs. narrowly lanceolate, acute at each 

 end, opposite, petioles ciliate, short*; fls. nodding; ped. axillary; sta. united iii 

 a very short tube at base, with intermediate processes. 1\. Grassy meadows 

 and prairies, Can., N. H. ! to Car., W. to la. ! and 111. Mead. Its stem and 

 flowers resemble those of L. ciliata, from which species it is chiefly distinguish- 

 ed by its narrower, lanceolate, never cordate leaves, and its more numerous and 

 leafy branches, each of which bears a whorl of 4 leaves and 4 flowers at the 

 end. Stamens with intermediate processes. Jl. . 



4. L. Q.UADRIFOLIA. Four-leaved Loosestrife. 



Simple, erect; Ivs. verticillate, in 4s, rarely in 5s or 3s, sessile, lanceolate, 

 acuminate, punctate; ped. axillary, 1-flowered, in- 4s (3s or 5s); pet. oval, ob- 

 tuse. TJ. In low grounds, river banks, Can. to Car. and Ky. Stem 18' high, 

 somewhat hairy, simple, with many whorls of 4 5 leaves, each" bearing a flow- 

 er-stalk in its axil. Corolla yellow, with purple lines. Stamens unequal, 

 united at base into a short tube. Anth. purple. Jn. , ..- 



5. L. HETEROPHYLI.A. Michx. Various-kovcd Loosestrife. 



Erect, subsimple ; Ivs. opposite, linear-lanceolate, acute, entire, margin 

 not reflexed, ciliate at base and on the short petiole, lower ones shorter, oval, 

 obovate or even roundish ; distinctly petiolate ; fls. on long peduncles, opposite 

 or apparently quaternate at top of the stem; sta. subequal, with intervening 

 teeth. Hills and woods, Ohio, Clark! 111. Jcnney ! to Ga. Stem 1218' high, 

 branched from the base if at all. Leaves about 2|' by 5", lower 1' by ', all 

 paler beneath. Flowers very similar to those of L. ciliata. Jn. Jl. 



6. L. LONGIFOLIA. Pui'sh. (L. revoluta. Nutt.} Prairie Moneywort. 



St. slender, 4-angled, flexuous, branched above ; Irs. opposite, linear-ob- 

 long, sessile, margin revolute ; fls. opposite or mostly quaternate and terminal 

 on the stem and branches ; scp. lance-linear, acuminate ; pet. longer than the 

 calyx, roundish-ovate, erose-dentate, abruptly acuminate. Common in low 

 prairies, W. States ! The large yellow flowers are very conspicuous among the 

 grasses. Stems 1220' high, purple. Leaves 23' by 2 3", coriaceous, deep 

 green. Flowers numerous, 9" diam., of a brilliant yellow. Anth. large. Jl. 



8. ANAGALLIS. 



Gr. avayEXaco, to laugh ; it is said to be medicinally efficacious in expelling hypochondria. 



Calyx 5-parted ; cor. rotate, deeply 5-parted, longer than the ca- 

 lyx, tube ; sta. 5, hirsute ; anth. introrse ; caps, globose, membra- 

 naceous, circumscissile. Herbs with square stems and (mostly) opposite 

 Ivs. Ped. axillary, solitary. 



A. ARVENSIS. Scarlet Pimpernel. Poor Man's Weather-glass. 

 Procumbent, branched ; Ivs. broad-ovate, opposite or ternate, sessile ; ped. 

 longer than the leaves; sep. linear-lanceolate, about equaling the petals; pet. 

 crenate-glandular. A beautiful trailing plant, in fields, roadsides, &c., U. S. 

 (except the colder parts of N. Eng.) and in almost all other countries. Stem 

 G 20' long, with elongated branches, or simple. Leaves 68" by 4 6". 

 Flowers opposite, small but beautiful, with scarlet petals, opening at 8 o'clock, 

 A. M., and closing at 2 P. M., in damp weather not open at all. Jn. Aug. 



9.CENTUNCtfLUS. 



Calyx, 5-parted ; cor. urceolate-rotate, 4-cleft, shorter than the ca- 

 lyx ; sta. 4, beardless, united at base j caps, globose, circumscissile ; 

 seeds very minute. CD Very diminutive, with alternate Ivs. Fls. 

 axillary, solitary, subsessile. 



C. MINIMUS. (C. lanceolatus. Michx.'} Bastard Pimpernel. 

 Erect, branched ; Ivs. subsessile, ovate or lance-ovate, obtusish, entire, al- 

 ternate, lower opposite; sep. linear-subulate, equaling the capsule. Wet places, 

 111. Mead ! and Southern States. Scarcely more than 1 2' high (4 6", Kid- 

 dell}. Leaves about 2" by 1". Flowers reddish ? Jl. 

 33* 



